AI3001 Refrigeration and Cold Storage Syllabus:

AI3001 Refrigeration and Cold Storage Syllabus – Anna University Regulation 2021

COURSE OBJECTIVES

 To interpret principles of operation of different Refrigeration & Air conditioning systems
 To understand the types of compressors and expansion devices and their applications
 To combine the parameters involved in design of the various air conditioning and cold storage systems

UNIT I REFRIGERATION PRINCIPLES AND COMPONENTS

Refrigeration principles – refrigeration effect coefficient of performance -units of refrigeration – Refrigeration components -compressor-classification-principle and working- condensers-types construction, principle and working. Evaporators – types-principle and working. Expansion device types construction, principle and working. Refrigerants properties classification comparison and advantages chloroflouro carbon (CFC) refrigerants – effect on environmental pollution – alternate refrigerants

UNIT II VAPOUR COMPRESSION AND VAPOUR ABSORPTION CYCLE

Simple vapour compression cycle – T-S diagram – p-h chart- vapour compression system-different types-vapour absorption cycle simple and practical vapour absorption system- advantages- ideal vapour absorption system- Electrolux refrigerator Lithium bromide refrigeration-construction and principles.

UNIT III APPLIED PSYCHROMETRY

Principle and properties of psychrometry, Representation of various psychometric processes on psychometric chart and their analysis, by-pass factor, sensible heat factor, room sensible heat factor, equipment sensible heat factor, grand sensible heat factor, apparatus dew point, ventilation and infiltration, energy efficiency ratio. Use of psychometric charts. Cooling and heating load calculations

UNIT IV AIR CONDITIONING SYSTEM

Air conditioning systems-equipment used-classification-comfort and Industrial air conditioning system- winter, summer and year- round air conditioning system- unitary and central air conditioning system- application of refrigeration and air conditioning-domestic refrigerator and freezer- ice manufacture.

UNIT V APPLICATIONS OF REFRIGERATION IN FOOD PROCESSING AND PRESERVATION

Cooling and heating load estimation, cold storage design, types of cooling plants for cold storage. Insulation properties and types of insulation material. Cold storage for milk, meat, fruits, vegetables, poultry and marine products. Refrigerated Transport, Handling and Distribution, Cold chain, refrigerated product handling, order picking, refrigerated vans, refrigerated display. Sensors for cold storage management.

FOR FURTHER READING
Design of cold storage system- IoT in cold storage management

TOTAL: 45 PERIODS
REFERENCE(s)

1. C. P. Arora, Refrigeration and Air Conditioning, Tata McGraw Hill Publishing Company Private Limited, New Delhi, 2008
2. Langley and C. Billy, Refrigeration and Air conditioning, Ed. 3, Engle wood Cliffs (NJ), Prentice Hall of India, New Delhi, 2009
3. Roy J. Dossat, Principles of Refrigeration, Pearson Education, New Delhi, 2007
4. N. F Stoecker and Jones, Refrigeration and Air Conditioning, Tata McGraw Hill, New Delhi, 2008
5. Manohar Prasad, Refrigeration and Air Conditioning, Wiley Eastern Ltd., 2007
6. J. B Hains, Automatic Control of Heating & Air conditioning, Tata McGraw Hill Publishing Company Private Limited, 2005

COURSE OUTCOMES

CO1 Select appropriate components of the refrigeration unit and analyze the effect of different refrigerants on environment
CO2 Differentiate various refrigeration cycles and its applicability
CO3 Apply knowledge of psychrometry for air conditioning & various food processing operations
CO4 Apply the knowledge of refrigeration and air conditioning in persevering foods using domestic and industrial refrigeration systems
CO5 Choose and design appropriate cold storage system for ensuring the product quality